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Restructuring and Other Charges - Restructuring Activities Related to 2018 Restructuring Plan (Details) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Sep. 29, 2019	Apr. 02, 2017	Jan. 01, 2017	Dec. 29, 2019
Restructuring Reserve [Roll Forward]
Charged in 2019	$ 700	$ 7,300	$ 19,800
2018 Restructuring Plan
Restructuring Reserve [Roll Forward]
Balance at Beginning of Year				$ 11,907
Deductions 2019				8,164
Charged in 2019				1,071
Balance at End of Year				2,672
2018 Restructuring Plan \| Workforce Reduction
Restructuring Reserve [Roll Forward]
Balance at Beginning of Year				10,763
Deductions 2019				7,122
Charged in 2019				1,743
Balance at End of Year				1,898
2018 Restructuring Plan \| Other Exit Costs
Restructuring Reserve [Roll Forward]
Balance at Beginning of Year				1,144
Deductions 2019				1,042
Charged in 2019				(672)
Balance at End of Year				$ 774